Question about 2004 Jeep Grand Cherokee

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2002 Jeep Grand Cherokee Limited 8L, engine revs while driving, especially on long road trips

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  • Jeep Master
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THE FIRST THING IS TO HAVE THE COMPUTER SCANNED FOR CODES, THESE CODES WILL HELP IN FINDING PROBLEM, ALSO CHECK THE IDLE AIR CONTROL VALVE, AS THIS VALVE CONTROLS THE IDLE AND GOES BAD OFTEN. AND LAST TAKE A GOOD LOOK AT VACCUM LINES FOR LEAKS, MOVE THEM AROUND AND LISTEN FOR A HISSING NOISE. GOOD LUCK.

Posted on Apr 28, 2010

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Posted on Jan 02, 2017

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2 Answers

95 Jeep Grand Cherokee leaking ATF, shudders when driving


Bank1 sensor 3 O2 heater. This can cause the shudder as engine adjustments are made.

The O2 sensors have built in heating elements to rapidly heat the part and save fuel. Its possible that engine is trying to adjust to compensate and is why it shudders.

As for trans leak, get it up on the rack for inspection. Could be simple pan gasket. Quick change oil/lube could see it.

Sep 19, 2012 | 1995 Jeep Grand Cherokee

1 Answer

My 2001 Grand Cherokee Revs 2500-3000 Rmp when I first start it any Ideas why


There is a plastic vacuum pipe which goes from the top of the engine to a solenoid behind the air filter.mine kept popping off due to no clamps holding it at each end( this being a 2002 limited v8) and the revs would go high when started.I bent the bracket on the solenoid so ther was less space between the two and its been fine.Also a pump or two on the gas pedal before starting lessens the revving.Hope this helps.davodown.

May 03, 2010 | 2001 Jeep Grand Cherokee

1 Answer

2002 Grand Cherokee limited will not start


Sounds like the nuetral safty switch is starting to go bad. the switch makes sure that the car is in park or neutral before it will alow the engine to crank over.

Jan 28, 2010 | 2002 Jeep Grand Cherokee

1 Answer

I have a 2001 Jeep Grand Cherokee Limited All Wheel Drive V-8 that revs high when starting whether the engine is cold or warm. It was suggested it may be the Idle Speed Air Control Motor. How easy can...


Pretty simple it's located on the intake on the top of the engine two screws and one plug , sometimes you can just clean them with carb and choke cleaner and put them back in and they will work fine.

Oct 06, 2009 | 2001 Jeep Grand Cherokee

1 Answer

My 2002 Jeep Grand Cherokee. Will die going down the road. Sometimes it starts back up without me touching the key.other times I have to wait a few minutes before it will crank again.Any suggestions? Thank...


I've got to be reading this incorrectly...You are driving, the engine turns off...you pull off the road? And then without touching the key the engine re-starts, but you haven't touched the key? Or, sometimes you need to sit there for a few minutes and then turn the key to start it?

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1 Answer

CHaging signal light in a 96 Jeep Grand Cherokee


Review this info: ZJ-Secc-8L-Lamps (page Lamps 8L-5 and next)

Good luck, and rated me!!!


Aug 02, 2009 | 1996 Jeep Grand Cherokee

1 Answer

RPM opposite effect on oil guage


how many miles are on the vehicle this usually happens when the oi; pump or engine is wore out.

Dec 13, 2008 | 2002 Jeep Grand Cherokee

1 Answer

Light bulb change


In here you can find the solution: Exterior bulb removal
This is the guide image 1 and guide image 2

Another info: Jeep-WJ-2002-Cherokee-Service-Manual-PDF-08L-Luces (page 8L-10 and next)
In spanish language, but with the pics, you can understand it

Good luck.

Nov 10, 2008 | 2002 Jeep Grand Cherokee

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